Open Pit Mining Methods 911 Metallurgist

Basics of an open pit mine

The definition of a open pit mine is "an excavation or cut made at the surface of the in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, From the start of the planning process, adequate consideration must be

An Overview of the Open Pit Mining Process Rare Gold Nuggets

Open pit mining

Open pit, open cast or open cut mining is a surface mining technique of extracting rock or . Gold is generally extracted in open pit mines at 1 to 5 ppm (parts per million) but in certain cases, 0.75 ppm gold is economical. This was achieved by